diff --git a/extra-properties.mako.hpp b/extra-properties.mako.hpp
new file mode 100644
index 0000000..6b006c2
--- /dev/null
+++ b/extra-properties.mako.hpp
@@ -0,0 +1,40 @@
+## This file is a template.  The comment below is emitted
+## into the rendered file; feel free to edit this file.
+// WARNING: Generated header. Do not edit!
+
+#pragma once
+
+#include <string>
+#include <map>
+#include "types.hpp"
+
+namespace openpower
+{
+namespace vpd
+{
+namespace inventory
+{
+namespace extra
+{
+
+const std::map<Path, InterfaceMap> objects = {
+% for path in dict.iterkeys():
+<%
+    interfaces = dict[path]
+%>\
+    {"${path}",{
+    % for interface,properties in interfaces.iteritems():
+        {"${interface}",{
+        % for property,value in properties.iteritems():
+            {"${property}", ${value}},
+        % endfor
+        }},
+    % endfor
+    }},
+% endfor
+};
+
+} // namespace extra
+} // namespace inventory
+} // namespace vpd
+} // namespace openpower